Ariston Clas One 30kW Combi Gas Boiler
| Manufacturer | Ariston |
| Boiler Model | Clas One 30kW Combi Gas Boiler |
| Condensing boiler? | Condensing |
| Energy Efficiency Rating | 90% |
| Energy Band | A Rated |
| LPG model/Conversion kit | Yes |
| Manufacturer Warranty | 8 Years |
| Heating Output | 28 kW |
| Wall Mounted or Floor Standing | Wall Mounted |
| DHW Flow Rate | 14.5 l/min |
| Total Cost | £1,650 - £2,150 |
| ERP Rating | A Heat A Water |
| Hot Water Max Output | 30 kW |
Overview of Ariston Clas One 30kW Combi Gas Boiler
The Ariston Clas One 30kW Combi Gas Boiler is a high-performance, energy-efficient solution designed to meet the heating and hot water demands of modern homes. As part of Ariston’s advanced ONE Series, this boiler combines premium Italian design with cutting-edge engineering to deliver optimal comfort, reliability, and eco-efficiency.
This compact combination boiler is ideal for homeowners who want a space-saving option without compromising on power or performance. The 30kW output makes it suitable for medium to larger-sized homes with up to 3 bedrooms and 2 bathrooms, offering fast hot water delivery and consistent heating.
Whether you’re upgrading your heating system or installing a new one, the Ariston Clas One 30kW is a smart, sustainable choice with advanced features to enhance energy savings and reduce your carbon footprint.
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Ariston Clas One 30kW Combi Gas Boiler Key Features
1. High-Efficiency Performance
The Clas One range utilises Ariston’s patented Xtratech™ stainless steel heat exchanger, offering maximum efficiency and long-lasting durability. This boiler is ERP A-rated for both heating and hot water, ensuring reduced energy usage and lower monthly bills.
2. Ultra-Quiet Operation
Engineered with a fully insulated casing and quiet-running components, the Clas One 30kW operates with minimal noise – perfect for homes where space is tight, and the boiler may be installed near living areas or bedrooms.
3. Compact and Wall-Mounted
Measuring just 745 x 400 x 315mm, this boiler is designed for wall-mounted installation and can easily fit in kitchen cupboards or utility rooms, saving you valuable floor space.
4. Smart Connectivity Ready
Compatible with Ariston’s Cube RF smart thermostat and the Ariston Net app, you can control your heating and hot water remotely, program schedules, and monitor energy usage for even greater efficiency and convenience.
5. Environmentally Friendly
The Class One range complies with the latest European efficiency standards, including NOx Class 6 (the lowest emissions rating), making it an eco-friendly choice for homeowners conscious of sustainability.
Is Ariston Clas One 30kW Combi Boiler Suitable for My Home?
The Ariston Clas One 30kW Combi Boiler is best suited for medium-sized homes with moderate hot water requirements. It’s capable of powering a central heating system with up to 15 radiators and providing strong water pressure for a single bathroom with occasional use of an ensuite or secondary bathroom.
If you have a large household with high simultaneous hot water demand (e.g. multiple showers in use at once), you might want to consider a higher output model or a system boiler setup. For smaller flats or apartments, a lower kW model may be more appropriate.
Ariston Clas One 30kW Boiler Size
The boiler’s compact dimensions are:
- Height: 745mm
- Width: 400mm
- Depth: 315mm
- Weight: 29kg
Its small footprint makes it perfect for homes where installation space is limited, such as kitchen cupboards, airing cupboards, or utility closets.
Ariston Clas One Combi Boiler Range of Models
The Ariston Clas One Combi Boiler range includes several models with different outputs to suit various home sizes and heating requirements. Below is a table with the available models, prices, and links to each dedicated product page:
| Model | Price |
|---|---|
| Ariston Clas One 24kW | £1,600 – £2,100 |
| Ariston Clas One 38kW | £1,949 – £2,449 |
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Ariston Clas One 30kW Boiler Warranty Period
The Ariston Clas One 30kW comes with a standard 8-year warranty when installed by an Ariston-accredited installer. This provides homeowners with peace of mind, knowing they are protected against manufacturing defects or issues. Extended warranties of up to 12 years may be available with approved installation and service packages.
Make sure your boiler is serviced annually to maintain the warranty and keep the unit running efficiently.
Ariston Clas One 30kW Installation and Maintenance
Professional installation is essential to ensure safety, efficiency, and warranty validation. Our Gas Safe registered engineers can install the Ariston Clas One 30kW quickly and with minimal disruption to your home.
Ongoing maintenance is straightforward – the boiler features easy-access internal components for fast servicing, and built-in diagnostics make it easier to identify any issues. Regular annual servicing will help prolong the life of your boiler, maintain efficiency, and prevent breakdowns.
Benefits of Choosing Ariston Clas One 30kW Combi Gas Boiler
- Lower Energy Bills: ERP A-rated performance for heating and hot water ensures optimal energy use.
- Space-Saving Design: Ideal for properties where installation space is limited.
- Quiet and Compact: Designed for comfort, even in smaller homes.
- Reliable Italian Engineering: Trusted European brand with over 90 years in heating technology.
- Smart Ready: Easily upgrade to a connected home experience.
Get an Instant Quote for Ariston Clas One 30kW Combi Gas Boiler Today
Looking to install the Ariston Clas One 30kW Combi Boiler in your home? Get a free, no-obligation online quote in a matter of minutes.
Frequently Asked Questions
Is Ariston Clas One 30kW a good boiler?
Yes, the Ariston Clas One 30kW is highly rated for its energy efficiency, smart features, and quiet operation. It’s a great mid-range boiler ideal for many UK homes.
How many radiators can a 30kW Ariston boiler run?
The 30kW model can typically handle up to 15 standard radiators, making it suitable for medium to large homes.
What is the lifespan of an Ariston Clas One 30kW boiler?
With regular servicing, this boiler can last 10–15 years. Its stainless steel heat exchanger enhances longevity.
Is the Ariston Clas One 30kW boiler hydrogen-ready?
Currently, it’s designed for natural gas use, but Ariston is innovating toward hydrogen-blend compatibility in future models.
Does the Ariston Clas One 30kW come with a filter or flue kit?
Some packages include a magnetic system filter and flue kit. Check with your installer or supplier for what’s included in your purchase.
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"First class boiler service. The engineer Gary was very polite, helpfully, and knowledgeable. Thank-you."
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